test: dropping old Python versions mean we no longer need optimize_if_not_debug=0

Author: nedbat

coverage/env.py

@@ -41,20 +41,19 @@ class PYBEHAVIOR:
 
     # Is "if not __debug__" optimized away? The exact details have changed
     # across versions.
-    optimize_if_not_debug = 0
     if pep626:
         optimize_if_not_debug = 1
     elif PYPY:
         if PYVERSION >= (3, 9):
             optimize_if_not_debug = 2
         elif PYVERSION[:2] == (3, 8):
             optimize_if_not_debug = 3
-        elif PYVERSION[:2] <= (3, 7):
+        else:
             optimize_if_not_debug = 1
     else:
         if PYVERSION >= (3, 8, 0, 'beta', 1):
             optimize_if_not_debug = 2
-        elif PYVERSION >= (3, 7, 0, 'alpha', 4):
+        else:
             optimize_if_not_debug = 1
 
     # Can co_lnotab have negative deltas?

tests/test_arcs.py

@@ -1520,16 +1520,14 @@ def test_if_debug(self):
         )
 
     def test_if_not_debug(self):
-        arcz_missing = ""
-        if env.PYBEHAVIOR.optimize_if_not_debug == 3:
-            arcz = ".1 12 23 32 37 72 28 8."
+        if env.PYBEHAVIOR.optimize_if_not_debug == 1:
+            arcz = ".1 12 23 34 42 37 72 28 8."
         elif env.PYBEHAVIOR.optimize_if_not_debug == 2:
             arcz = ".1 12 23 35 52 37 72 28 8."
-        elif env.PYBEHAVIOR.optimize_if_not_debug == 1:
-            arcz = ".1 12 23 34 42 37 72 28 8."
         else:
-            arcz = ".1 12 23 34 45 42 52 37 72 28 8."
-            arcz_missing = "45 52"
+            assert env.PYBEHAVIOR.optimize_if_not_debug == 3
+            arcz = ".1 12 23 32 37 72 28 8."
+
         self.check_coverage("""\
             lines = set()
             for value in [True, False]:
@@ -1541,7 +1539,6 @@ def test_if_not_debug(self):
             assert lines == set([7])
             """,
             arcz=arcz,
-            arcz_missing=arcz_missing,
         )